Credits:
- Original Concept - Hoffman & Akira
- Code - Hoffman & d0pefish
- v1.1+ C Rewrite - d0pefish
- Graphics - Akira
- Testing - PT12 Krew
PT-1210 is a program for DJ'ing ProTracker modules. It essentially turns your Amiga into a turntable / CDJ with nudge, pitch control and so on.
It has a number of features but the most important one is that it can re-pitch the samples played to match the BPM you want to play the tune at. This means drum and music loops will still be in sync and the other instruments will still be in key.
It will run on pretty much any Amiga, OSC/ESC, AGA, Accelerated and so on. I would recommend however that you run it using a CF card on the IDE port with 2 meg of chip ram. If you are using two Amigas I would also recommend that they are the same type, like two A1200's or two A600's. You can also use a hard drive, PCMCIA adapter CF Card, SD or even floppy disk.
Put all your modules in a folder with the program and run it. When it starts it will scan current folder for any ProTracker modules and add them to the file selector (M.K.). It will also try to determine the BPM. Simply select a module and it will load it, take you to the player screen and start playing.
| Key | Function |
|---|---|
| HELP | Switch screens (load and DJ mode) |
| UP / DOWN | Select file |
| RETURN | Load Tune |
| F10 | Sort list by BPM (toggles asc / desc) |
| F9 | Sort list by Filename (toggles asc / desc) |
| ESCAPE | Quit (hold for a second) |
| A-Z / 0-9 | Pick first file with matching first letter |
| F5 | Refresh folder |
NOTE: Quit will not work if a tune is playing!
| Key | Function |
|---|---|
| HELP | Switch screens (load and DJ mode) |
| LEFT | Nudge backward |
| RIGHT | Nudge forward |
| SHIFT LEFT | Hard nudge forward |
| SHIFT RIGHT | Hard nudge back |
| UP | Increase BPM |
| DOWN | Decrease BPM |
| SHIFT UP | Increase BPM fine tune |
| SHIFT DOWN | Decrease BPM fine tune |
| SPACE | Stop / Play |
| TAB | Toggle repitch on / off |
| DELETE | Resets tempo to original |
| BACKSPACE | Freezes the current pitch offset when adjusting the tempo further |
| ` | Kills sound DMA |
| 1/2/3/4 | Mute / Un-mute channel |
| SHIFT 1/2/3/4 | Solo channel |
| 5 | Un-mute all channels |
| Key | Function |
|---|---|
| F1 | Jump to cue pattern |
| F2 | Jump to cue pattern after current pattern ends |
| F3 | Set current pattern as cue |
| F10 | Pattern Loop (start / stop / deactivate) |
| + | Move forward one pattern (shift moves loop size) |
| - | Move back one pattern (shift moves loops size) |
| SHIFT + | Move forward line loop size |
| SHIFT - | Move back line loop size |
| CTRL + | Move cue pattern forward |
| CTRL - | Move cue pattern back |
| Key | Function |
|---|---|
| F6 | Decrease loop size |
| F7 | Increase loop size |
| F5 | Activate loop |
| F4 | Toggle Slip On / Off |
F10 will cycle through the pattern loop modes. The first press will store the loop start point and the second press will store the loop end point. The third press will then deactivate the loop.
Line looping enables you to loop small sections of the current pattern. The loop start point currently quantises to a beat (assuming speed 6) so positions 0,4,8,12,16,20,24,28... etc.
Slip mode is enabled by default. If you activate a loop with this ON, it continues increase the track position while looping. This means when you deactivate the loop, the track drops into the position of the tune as if you never looped it. You can switch to normal loop mode which will continue playing the track from after the loop point when deactivated.
The BPM detection works by looking at the first line of the first pattern within the module. This seems to work pretty well as it's always the first thing you set. However, if no BPM is set on the first line, then it will assume that it is VBR timing rather than CIA and set the BPM to 125. This is fine as long as the tune has been written at, say for example a tempo of 6 or 3 as this is 125 BPM. If the module is written with no CIA timing and a tempo of say 5, then the BPM will be inacurate.
BTW - there is no way around this! ( i think! )
It started as a discussion on the EAB forum where Akira was asking if the repitch function would be possible. After some more posts I started making a little proof of concept program with just one module. It worked and much better then we expected it to as well! Gradually over time I've added more functions, things like looping, pattern display, scopes and so on.
PT1210 is now system friendly as of version 1.1!
The player is one of the original ProTracker replay sources so it should be pretty dam accurate. If it sounds weird, check it in ProTracker v2.3d first and fix it there. If it still sounds weird, provide us with an example and we'll take a look.
Becareful when pitching tunes up higher in BPM. As you probably know the Paula chip can only play samples up to a certain pitch. If your module runs the samples high in pitch and you push then tempo up too much, they wont go any further.
There are a number of modules that exist where they have no REPLEN set on the samples. Our guess is they've been written in FastTracker or similar. These actually crash ProTracker when trying to play them. Crashing is a bad thing so we apply a patch to the modules on load to fix this issue.
I've tried using an A600 alongside an A1200 and found that by default they do sound different. This is because they made the A600 badly and chopped a lot of the high end off the sound. There is a hardware hack, ask Akira! I also noticed that the timing was slightly different between the two Amigas which we believe is a small difference in the two systems CIA chips. There is a fine pitch adjust which should help with this timing issue.
We are people who love the Amiga, love ProTracker and love DJ'ing.
2024-04-19 It's been ten years, might as well put it all out there now :D
2014-05-06 Fixed bug where scopes would crash if they hit a sample 0. Added folder re-scan function but crashes if you switch floppy disk! (no good!)
2014-04-14 Final build before Revision, which means we are now V1.0. Program now quits if no modules are found in the folder (used to crash)
STATIC SCROLLER ALERT!!!
Firstly massive thanks to Akira for all his hard work with ideas, testing, graphics, PR and generally everything else. It's been enough work getting the code done let alone managing everything else surrounding the release of this program.
Next up massive props to Tecon, the only man I know to exploit more bugs in the PT replay source than me! Your the reason it's so dam solid now, great bug hunting.
Lastly a big thank you to all the people who have shown an interest in this little program. When we started this project I never knew so many people wanted to dust off their Amiga's and hook them up to their mixers. I hope you all enjoy playing ProTracker mods in the mix with this tool. Now you can all stop harassing Akira for a release!!
2013-03-21 BPM re-arranged, now shows fine as larger digits and percentage diff Slip mode light changed Removed one line for file selecta Copper bug fixed in file selecta Added Chip Ram notification on startup Added F8 Kb file size in file selecta Added lovely splash screen Added some easter fun! Added A-Z 0-9 keys for finding file
2013-03-05 Added fine tune BPM, working well but needs UI changes Added Cue Point mover (CTRL + -)
2013-02-28 - Tecons test run! Added blank sample so empty samples play this instead otherwise junk gets played. Reset some variables in PT Replay on load so E6 command doesnt freak Fonts now supports Underscore char Implemented n_altperiod so ARPS and Vibrato now work with Re-Pitch Bug where ED command caused pitch change too early now fixed
2014-02-26 Implemented new pattern loop sprites Grid now above and below the track display Pattern cue slip now flashes when engaged Near end of track warning now flashes track bar Increased BPM range again with saftey Diabled VB Interrupt during loading as it could cause screen corruption Fixed bug where if number of tunes is less the screen, you could scroll past and fuck everything up! Implemented Shift + / - which moves the size of the loop
2014-02-24 Track bar now replaced with overall track display with pattern splits
2014-02-14 - Datastorm! Scopes now switch off when track is paused and when new track is loaded Fixed bug where loading new tune would show the pattern from the last tune Code split for fast mem not working, need to speak to someone about that
2013-12-17 - Code name UI! Added graphics from Akira and complete UI re-work Shaved loads of memory usage Ditched all old UI code Split code into fast mem if available
2013-09-23 Added fix for what looks like lame FT2 modules where the REPLEN isn't set BPM detection will now default to 125 if not found on first line of the mod Max tunes raised to 200 Fixed bug when max number of tunes is reached it wont load anything File selector over scroll fixed (when less than a screens worth of tunes) Added key repeat function on tempo and file selection Quit is now done by holding ESCAPE key in file selector only Added file sorting by name and BPM
2013-09-04 Added channel toggles on screen! Fixed $F00 bug (god was dividing by zero!) stopped tune from restarting after ending Temporary fix on loading error but still buggy Fix for VBR CIA (Again?)
2013-09-02 Fixed bug where ARP's and Vibrato wouldn't work however don't re-pitch chip tunes, they sound shit Added pattern move forward and back Counter remove from display, pointless Pattern Loop now shows start and end only when activated Pattern Lock removed from display Now resets all values when loading a tune TO DO - Song cue point store
2013-05-17 Pattern display added File selector supports more files File selector now shows BPM! (BPM Detection on based on first line of mod) Files no longer need to be called mod., file is now checked for M.K.
2012-09-09 Inital beater